package edu.wit.system.controller;

import edu.wit.common.result.R;
import edu.wit.common.utils.StringUtils;
import edu.wit.common.utils.file.FileUtils;
import edu.wit.system.service.SysFileService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@RestController
@RequestMapping("/sys/file")
@Api(tags = "文件处理")
public class FileController {

    private static final Logger log = LoggerFactory.getLogger(FileController.class);

    @Autowired
    private SysFileService sysFileService;

    @ApiOperation("上传图片到Minio")
    @PostMapping("/uploadImg")
    public R testImg(MultipartFile file) throws Exception{
        return R.ok().data("imgurl",sysFileService.uploadFile(file));
    }

    /**
     * 通用下载请求
     *
     * @param fileName 文件名称
     * @param delete 是否删除
     */
    @GetMapping("/download")
    public void fileDownload(String fileName, Boolean delete, HttpServletResponse response, HttpServletRequest request) {
        try {
            if (!FileUtils.isValidFilename(fileName)) {
                throw new Exception(StringUtils.format("文件名称({})非法，不允许下载。 ", fileName));
            }
            String realFileName = System.currentTimeMillis() + fileName.substring(fileName.indexOf("_") + 1);
//            String filePath = RuoYiConfig.getDownloadPath() + fileName;

            System.out.println("realFileName="+realFileName);

            String filePath = "E:/ruoyi/uploadPath/" + fileName;
            response.setCharacterEncoding("utf-8");
            response.setContentType("multipart/form-data");
            response.setHeader("Content-Disposition",
                    "attachment;fileName=" + FileUtils.setFileDownloadHeader(request, realFileName));
            FileUtils.writeBytes(filePath, response.getOutputStream());
            if (delete) {
                FileUtils.deleteFile(filePath);
            }
        } catch (Exception e) {
            log.error("下载文件失败", e);
        }
    }
}
